docs: def _update_cinder_config(cls):
          """Parse in-memory file to update OSLO configuration used by Cinder."""
          cls._config_string_io.seek(0)
          cls._parser.write(cls._config_string_io)
  
          # Check if we have any multiopt
          cls._config_string_io.seek(0)
          current_cfg = cls._config_string_io.read()
          if '\n\t' in current_cfg:
              cls._config_string_io.seek(0)
              cls._config_string_io.write(current_cfg.replace('\n\t', '\n'))
  
          cls._config_string_io.seek(0)
          cfg.CONF.reload_config_files()